湖南大学学报（自然科学版）Issue(6)：99-105,7.
玻化微珠保温砂浆导热系数模型研究
Study on the Thermal Conductivity Model of Hollow Beads Insulating Mortar
摘要
Abstract
Based on the minimum thermal resistance theory and homogenization method,the effective thermal conductivity of hollow beads insulating mortar was estimated.With ANSYS imitating the heat transmission of the 2D unit model of hollow beads insulating mortar,we can find it will bring about calcu-lation errors by considering the extreme cases of the transverse thermal resistance of resistance network. Compared with the effective thermal conductivity of 3D unit cell model calculated by ANSYS with three kinds of theoretical calculating value,it is more accurate than the effective thermal conductivity of unit cal-culated by the model of effective thermal resistance average.A model was built by assuming transverse thermal resistance infinitesimal and infinite.Final laboratory finding also confirms this conclusion.With only 0.2% deviation between the experiment values and the calculation of theoretical model,it is feasible to estimate the effective thermal conductivity of hollow bead insulating mortar.关键词
最小热阻力/均匀化方法/等效导热系数/玻化微珠保温砂浆/有限元模拟Key words
minimum thermal resistance/homogenization method/effective thermal conductivity/hol-low beads insulating mortar/finite element simulation分类
建筑与水利引用本文复制引用
龚建清,张婵韬..玻化微珠保温砂浆导热系数模型研究[J].湖南大学学报（自然科学版）,2014,(6):99-105,7.基金项目
国家自然科学基金资助项目(51278180) （51278180）
